Luthier Understring Radius Gauge 9 Set

• Measure fretboard radius.
• 9 sizes.
• 7.25" 9.5" 10" 12" 14" 15" 16" 17" 20"
• Durable and accurate construction.
• 1.5mm thick.

This is an item designed for luthiers or just those who want to setup their own instruments. It's a set of 9 gauges used to measure the fretboard radius using the bottom and top of the gauge. Sizes 7.25" 9.5" 10" 12" 14" 15" 16" 17" 20" are included in the set.

Does not contain instructions for setting up your guitar. For those with existing knowledge only.